Flights from London to the United States from $ 785*

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Changed bag rules and optional services         Cruise Packages

Find United's best fares from London to the United States

$
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  • London (LHR)to

    Denver (DEN)
    07/08/26 - 07/15/26
    from
    $ 996
    Viewed: 5 hours ago
    Roundtrip
    Economy

    London (LHR)to

    Washington, D.C. (IAD)
    07/27/26 - 07/29/26
    from
    $ 827
    Viewed: 1 day ago
    Roundtrip
    Economy

    London (LHR)to

    Houston (IAH)
    01/04/27 - 03/26/27
    from
    $ 1,437
    Viewed: 9 hours ago
    Roundtrip
    Economy

    London (LHR)to

    San Diego (SAN)
    12/23/26 - 01/11/27
    from
    $ 1,272
    Viewed: 13 hours ago
    Roundtrip
    Economy

  • London (LHR)to

    Boston (BOS)
    07/19/26 - 08/01/26
    from
    $ 1,032
    Viewed: 1 day ago
    Roundtrip
    Economy

    London (LHR)to

    Austin (AUS)
    06/30/26 - 12/21/26
    from
    $ 1,105
    Viewed: 10 hours ago
    Roundtrip
    Economy

    London (LHR)to

    Las Vegas (LAS)
    07/09/26 - 07/14/26
    from
    $ 1,232
    Viewed: 1 hour ago
    Roundtrip
    Economy

    London (LHR)to

    Orlando (MCO)
    07/02/26 - 10/08/26
    from
    $ 851
    Viewed: 3 hours ago
    Roundtrip
    Economy

  • London (LHR)to

    Phoenix (PHX)
    06/28/26 - 07/26/26
    from
    $ 1,227
    Viewed: 22 hours ago
    Roundtrip
    Economy

    London (LHR)to

    Portland, OR (PDX)
    06/27/26 - 07/26/26
    from
    $ 1,176
    Viewed: 3 hours ago
    Roundtrip
    Economy

    London (LHR)to

    Sacramento (SMF)
    06/22/26 - 07/19/26
    from
    $ 1,253
    Viewed: 7 hours ago
    Roundtrip
    Economy

    London (LHR)to

    Miami (MIA)
    07/10/26 - 07/14/26
    from
    $ 964
    Viewed: 5 hours ago
    Roundtrip
    Economy

  • London (LHR)to

    Cleveland (CLE)
    06/14/26 - 06/25/26
    from
    $ 1,294
    Viewed: 6 hours ago
    Roundtrip
    Economy

    London (LHR)to

    Fort Lauderdale (FLL)
    11/30/26 - 01/02/27
    from
    $ 1,163
    Viewed: 2 hours ago
    Roundtrip
    Economy

    London (LHR)to

    Seattle (SEA)
    02/02/27 - 02/26/27
    from
    $ 894
    Viewed: 14 hours ago
    Roundtrip
    Economy

    London (LHR)to

    Savannah (SAV)
    06/16/26 - 06/28/26
    from
    $ 1,292
    Viewed: 10 hours ago
    Roundtrip
    Economy

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

Business class flights from London to the United States

$

London (LHR)to

San Francisco (SFO)
12/15/26 - 01/05/27

Roundtrip

Business

from
$ 4,648
Viewed: 1 day ago

London (LHR)to

Newark/New York (EWR)
04/24/27 - 04/29/27

Roundtrip

Business

from
$ 3,958
Viewed: 13 hours ago

London (LHR)to

Chicago (ORD)
07/31/26 - 08/06/26

Roundtrip

Business

from
$ 5,779
Viewed: 13 hours ago

London (LHR)to

Los Angeles (LAX)
08/07/26 - 08/15/26

Roundtrip

Business

from
$ 6,720
Viewed: 11 hours ago

London (LHR)to

Denver (DEN)
08/03/26 - 08/19/26

Roundtrip

Business

from
$ 7,225
Viewed: 16 hours ago

London (LHR)to

Washington, D.C. (IAD)
10/12/26 - 10/21/26

Roundtrip

Business

from
$ 4,060
Viewed: 19 hours ago

London (LHR)to

Houston (IAH)
12/18/26 - 12/30/26

Roundtrip

Business

from
$ 5,123
Viewed: 1 day ago

London (LHR)to

San Diego (SAN)
12/23/26 - 01/11/27

Roundtrip

Business

from
$ 4,866
Viewed: 13 hours ago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.